168773968128 has 36 divisors (see below), whose sum is σ = 449184885968. Its totient is φ = 56257989120.

The previous prime is 168773968093. The next prime is 168773968157. The reversal of 168773968128 is 821869377861.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109878118 + ... + 109879653.

Almost surely, 2^168773968128 is an apocalyptic number.

It is an amenable number.

168773968128 is an abundant number, since it is smaller than the sum of its proper divisors (280410917840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168773968128 is an equidigital number, since it uses as much as digits as its factorization.

168773968128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219757790 (or 219757776 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 66.

The spelling of 168773968128 in words is "one hundred sixty-eight billion, seven hundred seventy-three million, nine hundred sixty-eight thousand, one hundred twenty-eight".